gregor mendel

• gregor mendel - an augustian monk, father of genetics
• when was gregor mendel born?

  july 30, 1822
• genetics - study of hederity, how traits are passed from parents to oofsprinf
• hederity - the passing of physical characteristics genetically from 1 person to another.
• inheritance traits are controlled of genes
• genes - basic unit of heredity passed from parents to offspring
• characters - physical features that are inherited
• trait - one of several possible forms of a characters
• hybrid - offspring of a cross betweesn parents with different trait
• petals - gives the flowers a unique shape and has color to attarct insect
• nectar - produce nectar
• sepals - small parts growing base of the petals looks like tiny leaves
• penducles - it is thicken part that holds the major organs
• stamen - it is the male organ of the flower that contains 2 parts
• anther - responsible for the production of pollen
• filament - stalk that holds & support the anther and attaches it to the flower
• pollination - mendel manually took pollen from an anther
• self pollination - a flower will pollinate fitself or another flower on the same plants
• cross pollination - a flower will pollinate a flower on a different plant
• true breeding - a plant is a pure for a trait , its offspring will always have that same trait
• pistil or carpel - the ovule producing part of a flower
• stigma - sticky structure that pollen attaches to
• style - supports stigma and connects the stigma to the ovary
• ovary - produces the female gamete
• ovule - contains female gamete that develop seed
• dominant allele - whose trait is always expressed
• recessive allele - not expressed when a dominant allele is present
• genotype - all the alleles/genes
• phenotype - the physical expression of one genotype
• homozygous - genotype with 2 identical alleles
• heterozygous - genotype with 2 different alleles
• punnet square - model/tool that predict the outcomes
• monohybrid cross - cross between individuals involving one trait
• incomplete dominance - an allele does not completely dominate another
• codominance - both allels for a traits are fully expressed
• multiple alleles - a trait has 3 or more possible alleles
• when mendel conducted the pea plant experiment - 1856 to 1863